Answer:
80
Step-by-step explanation:
35 + 3(x-1) = Total Number of Seats where x represents the row.
35 represents the number of seats in the first row.
3(x-1) represents the three seats added every row after the first.
x = 16 row
35+ 3(16-1)
= 35 + 3*15
= 35+ 45
= 80
